50-State Legal, Beats Competitors

The Banks Ram-Air system for the 2020-23 Duramax 6.6L is now 50-state emissions compliant. All Duramax owners can now experience its added power, sharpened turbo response, and improved fuel economy, made possible by our Air Mass Control Module. The patented electronic device allows us to use the Banks SuperTube, a massive free-flowing intake tube that dwarfs stock and competitors.

Just having a big-looking filter doesn’t mean it will perform the best. Our massive filter has an optimized ratio of filter surface area, pleat count, and media thickness, allowing it to outflow every other filter tested while breathing evenly from all sides. And, the Banks Big-Ass filter has greater dust capacity giving you more miles between services, flowing freely long after stock and competitors are clogged with debris. Banks wins again.